Underground Construction

Built to Last, Installed with Precision

When it comes to underground construction, there’s no room for mistakes. At Century Home Services, our expert crews handle every project with care — from new utility lines to emergency sewer and water repairs. We use advanced methods, including trenchless technology, to minimize disruption and ensure durable, code-compliant results.

Whether you’re dealing with aging infrastructure, need a new connection, or face urgent repairs, our team is ready 24/7. Serving homeowners, HOAs, builders, and businesses across Marin, San Francisco, and the Greater Bay Area.

Utility Installations and Upgrades

From fire lines and gas to sewer and water systems, we safely install and replace all types of underground utilities to meet modern standards.

Precision Planning and Execution

Our process starts with careful planning and expert design. Using advanced tools and techniques, we ensure every underground project is seamless and stress-free from start to finish.

Trenchless Solutions Available

Preserve your landscaping and hardscapes. We offer trenchless and minimal-dig solutions to reduce mess and save time — without sacrificing quality.

Testimonials

Julie S. 4 weeks ago

Mark responded within 5 minutes of my search on yelp, and was very easy to schedule an appointment for our slow bathroom drains. Very communicative, on-time day of service, and professional. Took care of the sink and bathtub drains quickly and neatly. Best priced on the 4 other quotes received as well. He even followed up a month later to make sure everything was still working well. Excellent experience all around.

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Luke T. 1 month ago

My house has old water pipes leaking problems. It's better replaced it to the copper pipe. The team are very professional fixed and replacement main water pipes very quickly. Gregory has very good professional skills to do all the jobs and make sure all connections has been sealed with no any leaking issues. Gregory work very hard and friendly. We are very happy has worry free new water line in my house and it will last for longtime. Great team and value do the good work. Thanks

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Ken C. 1 month ago

Mark came on a Sunday to help us fix our water thumping noise issue. He's an expert at diagnosing problems. He narrowed down to the kitchen faucet that had a flexible hose inside that expanded and contracted when we turned on off the valve. He offered a range of options and tried the least expensive option to see if it addressed our issue. He didn't push did the most expensive option. We appreciate mark's professionalism. We are very happy and would recommend him to our friends.

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Art L. 1 month ago

I hired Century Home Services to look into a leaky garbage disposal issue in our kitchen. Mark was great to talk to, clearly explained what the issue could've been, and gave me a reasonable quote. There was a smidgen of a phone tag issue, which was entirely Yelp's fault, as some of Mark's messages were forwarded to my phone and others were not. Mark rescued the situation by being very quick to answer the phone (unlike many other contractors!) and flexible with his scheduling.

Even with that little hiccup, Mark and Gregory showed up the next day and fixed the garbage disposal quickly and professionally, with no mess and no fuss.

This was a relatively small issue that could've become a big problem, and I'm glad I hired Century when I did. If we have a plumbing project again, I'll be calling Mark, and you should too.

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